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LTC3855EUJ#TRPBF
+NomenclatureIC REG CTRLR BUCK 40QFN
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FabricantAnalog Equipment GmbH.
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Pièce fabricant #LTC3855EUJ#TRPBF
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Fiche technique LTC3855EUJ#TRPBF DataSheet
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Spécifications
| Attribut | Valeur |
| Series | PolyPhase® |
| Part Status | Active |
| Base Product Number | LTC3855 |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 2 |
| Output Phases | 2 |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 38V |
| Frequency - Switching | 250kHz ~ 770kHz |
| Duty Cycle (Max) | 95% |
| Synchronous Rectifier | Yes |
| Clock Sync | No |
| Control Features | Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package | 40-WFQFN Exposed Pad |
| Supplier Device Package | 40-QFN (6x6) |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
Présentation
Description
Key features include programmable output voltage, high switching frequency (up to 1MHz), and built-in current sense for improved load regulation. The LTC3855 also includes protections such as overvoltage, short-circuit, and thermal shutdown to ensure reliable operation. Its compact package and efficiency make it ideal for space-constrained designs where power loss must be minimized.
Overall, the LTC3855EUJ#TRPBF is an excellent choice for designers looking for a robust and efficient solution to power supply challenges in demanding environments.
Equivalent
Features
1. Dual Outputs: Supports two independent output voltages, enabling flexible power supply designs.
2. Input Voltage Range: Operates with a wide input range from 4.5V to 60V, suitable for various applications.
3. High Efficiency: Designed for high efficiency with minimal heat generation, allowing for compact designs.
4. Current Mode Control: Offers excellent transient response and loop stability.
5. Programmable Switching Frequency: Adjustable frequency from 250kHz to 1MHz allows optimization for various applications.
6. Output Voltage Regulation: Accurate output voltage regulation with high precision.
7. Power Good Indicator: Integrated power good function provides feedback on output status.
8. Thermal Protection: Features thermal shutdown and overcurrent protection to ensure safe operation.
These characteristics make the LTC3855EUJ#TRPBF ideal for applications in industrial, automotive, and telecom power management systems.
Pinout
Key functions include:
- Input Voltage Range: Supports input voltages from 4.5V to 60V.
- Phase Control: Allows for the interleaving of outputs to reduce input and output ripple.
- Current Sensing: Includes a current sense feature for current-limiting and control.
- Adjustable Output Voltage: Outputs can be set from 0.8V to 0.9 × VIN.
- Power Good Indicator: Monitors output voltage status.
- Soft-Start Function: Controls the voltage ramp-up during startup.
- Thermal Protection: Prevents overheating through thermal shutdown.
The LTC3855 is commonly used in applications requiring high efficiency and flexibility in power supply design, such as telecom and industrial equipment.
Manufacturer
The LTC3855EUJ#TRPBF is a high-performance dual step-down DC-DC controller designed for applications requiring efficient power management and regulation. Analog Devices focuses on providing innovative solutions that facilitate the conversion, processing, and transmission of signals, making it a key player in the semiconductor industry. The company is recognized for its commitment to quality and reliability, catering to a diverse range of sectors such as healthcare, aerospace, and telecommunications.
Application
1. Telecommunications: Used in power management for base stations and networking equipment.
2. Industrial Equipment: Powers various devices in automation and control systems.
3. Automotive: Suitable for powering sensors, infotainment systems, and electric vehicle components.
4. Consumer Electronics: Utilized in devices requiring efficient power supply, such as laptops and tablets.
5. Medical Devices: Employed in power circuits for medical instruments requiring reliable voltage regulation.
Its high efficiency and flexibility make it suitable for a wide range of applications.